TOP 10 SPACE YOUTUBE CHANNELS 2018

Today, we discuss the possibility of a more idle but settled civilisation: one that remains utterly restricted to the boundaries of their home planet and sees no point whatsoever in traversing the stars, even if they have the ability to do so, as a solution to why we aren't seeing any alien civilisations in the night sky. ►Click here to subscribe: https://www.youtube.com/channel/UCB0fFWQLZ2oj-FaoDUG_wow?sub_confirmation=1 ►Written, Produced & Narrated by David ►Share this video: https://www.youtube.com/watch?v=Uen6euyVYFM Music: “Cylinder Five” by Chris Zabriskie “So Many Stars” by Miguel Johnson “Sirius” by Sergey Cheremisinov Credits: Vidsplay.com

🤝Patreon: https://www.patreon.com/Astronomic 💵PayPal: [email protected] 💰Bitcoin: 1PpRcgMy2ZvkLnuds6wamBZ7dR2zSNjVpr ———————————————————————————— ✏️Title: Black Holes ➕Subscribe: https://www.youtube.com/Astronomic 👍Enjoyed the Video? Leave a Like! 🔔 Turn on Notifications, for Video Alerts! ———————————————————————————— 📹Videos: ① https://www.youtube.com/watch?v=FqNzExzQ2RI&t=81s&ab_channel=Astronomic ② https://www.youtube.com/watch?v=3R-jMdSGNE8&ab_channel=Astronomic ③ https://www.youtube.com/watch?v=I6MWuCPRewc&ab_channel=Astronomic ———————————————————————————— 🐦Twitter: https://www.twitter.com/Astr0nomic 📖Facebook: https://www.facebook.com/Astronomic 📸Instagram: https://www.instagram.com/Astr0nomic 📼More: https://www.curious.com/Astronomic ———————————————————————————— 🎹Music: “Perspectives” Kevin MacLeod (https://www.incompetech.com) 📱Icons: FreePik (https://www.freepik.com) ———————————————————————————— 📝Licensed under Creative Commons Attribution 3.0 🚀Licensed under Astronomic videos ©

Timestamps: 6:20 - How Nozzles Work 16:00 - How Aerospikes Work 19:55 - The Problems With Aerospikes 32:50 - Comparing Aerospike Engines To Bell Engines 41:30 - What The Experts Say 51:35 - Future Aerospike Prospects 54:00 - Summary Article version for easy reading and references - http://everydayastronaut.com/aerospikes Today we’re going to look at the history of aerospike engines, go over how nozzles work including things like overexpansion, underexpansion and even expansion ratios, we’ll look at the pros and cons of the aerospike, the physical limitations and problems, then we’ll compare the aerospike to some other traditional rocket engines. But that’s not all, I obtained never seen before photos and videos of some aerospikes, we’ll get opinions from some people who have actually worked with aerospike engines, look at some promising prospects and compelling concepts and by the end of the video we’ll hopefully know whether or not the holy grail of rocket engines is just waiting to be utilized or if aerospikes just simply aren’t worth it. Special thanks to @MartianDays on Twitter for the scale engine renders! - https://twitter.com/martiandays And also thanks to Charlie Garcia for helping me learn so much! - https://www.youtube.com/user/dragonrider66511 -------------------------- Want to support what I do? Consider becoming a Patreon supporter for access to exclusive livestreams, our discord channel and subreddit! - http://patreon.com/everydayastronaut Thanks to my Moon Walkers for helping produce each and every video! - Neurostream, Max Haot, Thomas May, Jason Padilla, Joe Leva, John Malkin, Larry D Lysinger, ArcTechInc, Blake Jacobs, Ole Mathias Heggem, Jared Smith, Mac Malkawi, Jethro, TTTA and NSS North Houston Space Society! The best place for all your space merch needs! https://everydayastronaut.com/shop/ All music is original! Check out my album "Maximum Aerodynamic Pressure" anywhere you listen to music (Spotify, iTunes, Google Play, Amazon, etc) or click here for easy links - http://everydayastronaut.com/music I'm the cohost of an awesome podcast where we talk all about current technologies and how they shape our future! http://ourludicrousfuture.com or here on YouTube https://www.youtube.com/ourludicrousfuture

An exploration of recent research that suggests that Venus' atmosphere may be being altered by the presence of microbial life. https://www.patreon.com/johnmichaelgodier Papers: "Long-term variations of Venus' 365-nm albedo observed by Venus Express, Akatsuki, MESSENGER, and Hubble Space Telescope", Yeon Joo Lee et al, 2019 https://arxiv.org/abs/1907.09683 Music: Cylinder Eight by Chris Zabriskie is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://chriszabriskie.com/cylinders/ Artist: http://chriszabriskie.com/

Like this content? Please consider becoming a patron: https://patreon.com/DeepAstronomy In this episode, our favorite exoplanet hunting space telescope, known as TESS, has managed to capture a black hole tearing a star apart. Not only is TESS finding worlds around other stars, but it’s keeping a vigilant eye on the rest of the galaxy to find things just like this. According to NASA, capturing this event is hard, it only happens once every ten to a hundred thousand years in our galaxy. #TESS #BlackHoles Join our Chat on Discord here: https://discord.gg/nqGpvtK Follow DeepAstronomy on Twitter: @DeepAstronomy Like DeepAstronomy on Facebook: https://www.facebook.com/DeepAstronomy/

Skyrora is building a new small sat launcher that is environmentally conscious, possibly reusable and unlike anything else on the market. This week we're joined by Skyrora Lead Engineer Robin Hague to talk about what they are building and when we can see it fly! Remember you can always help out the shows of TMRO by becoming a member here: https://www.youtube.com/user/TMRO/join

Join Fraser for a live QA about all things space and astronomy.

Alzheimer's has been called the epidemic of our century—every 66 seconds someone in the United States is diagnosed with Alzheimer's » Subscribe to Seeker! http://bit.ly/subscribeseeker » Watch more SICK | http://bit.ly/SICKplaylist Alzheimer's disease is the most common cause of dementia in the world. Nearly 50 million people worldwide have it. But after decades of research, finding a way to prevent this disease has been a puzzle that has eluded the medical community. And now we might be closer than ever. Seeker sat down with the Mayo Clinic's Nilufer Ertekin-Taner, a neurologist and neuroscientist focused on Alzheimer's disease and related dementias, to discuss the disease. Alzheimer's disease is a progressive condition, typically starting in the part of the brain associated with memory. It then spreads, causing trouble with memory, other cognitive abilities, and eventually, loss of bodily functions. Alzheimer's is a relentlessly progressive condition that leads to death by or with the disease. Age, smoking, hypertension, diabetes, and obesity are all risk factors for Alzheimer's. Learn more about the elusive disease and the possibility of prevention on this episode of SICK. #Alzheimer #Brain #Health #Memory #Healthcare #Seeker #SICK ____________________ Read More: More from Mayo: https://www.mayo.edu/research/labs/genetics-of-alzheimers-disease-and-endophenotypes Artificial Intelligence Can Detect Alzheimer’s Disease in Brain Scans Six Years Before a Diagnosis: https://www.ucsf.edu/news/2019/01/412946/artificial-intelligence-can-detect-alzheimers-disease-brain-scans-six-years Alzheimer’s Association website: https://www.alz.org/ ____________________ SICK is a new series that looks at how diseases actually work inside our body. We'll be visiting medical centers and talking to top researchers and doctors to uncover the mysteries of viruses, bacteria, fungi and our own immune system. Come back every Tuesday for a new episode and let us know in the comments which diseases you think we should cover next. ____________________ Visit the Seeker website https://www.seeker.com/videos Subscribe now! http://www.youtube.com/subscription_c... Seeker on Twitter http://twitter.com/seeker Seeker on Instagram https://www.instagram.com/seeker/ Seeker on Facebook https://www.facebook.com/SeekerMedia/

The James Webb Space Telescope is the most complex telescope we’ve ever sent into space. But, Webb is not, in fact, in space… yet. Host: Caitlin Hofmeister SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at http://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Matt Curls, Sam Buck, Christopher R Boucher, Avi Yashchin, Adam Brainard, Greg, Alex Hackman, Sam Lutfi, D.A. Noe, Piya Shedden, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.nasa.gov/sites/default/files/atoms/files/webb_irb_report_and_response_0.pdf https://www.jwst.nasa.gov/ https://www.nasa.gov/vision/universe/starsgalaxies/webb_technologies.html https://www.nytimes.com/2018/03/27/science/nasa-webb-telescope.html https://www.sciencemag.org/news/2018/06/nasa-s-webb-telescope-delayed-2021 https://spacepolicyonline.com/news/nasa-evaluating-jwst-independent-review-report/ https://www.nasa.gov/feature/goddard/2019/nasa-s-james-webb-space-telescope-has-been-assembled-for-the-first-time ------ Images: https://svs.gsfc.nasa.gov/20250 https://svs.gsfc.nasa.gov/12894 https://svs.gsfc.nasa.gov/10569 https://www.eso.org/public/images/potw1236a/ https://svs.gsfc.nasa.gov/12241 https://svs.gsfc.nasa.gov/11769 https://svs.gsfc.nasa.gov/13337 https://jwst.nasa.gov/content/about/innovations/microshutters.html https://svs.gsfc.nasa.gov/11523 https://svs.gsfc.nasa.gov/12145 https://www.istockphoto.com/photo/rocket-gm177309667-20220743 https://svs.gsfc.nasa.gov/12409 https://svs.gsfc.nasa.gov/12461

The Butterfly Effect is the principle that notes that even the smallest actions can have sweeping effects on everything in the long term. Today we'll look at that effect and ask what it means toward chaos, inevitable events, fate, and free will itself. Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Listen or Download the audio of this episode from Soundcloud: Episode's Audio-only version: https://soundcloud.com/isaac-arthur-148927746/the-butterfly-effect Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/the-butterfly-effect-narration-only Credits: The Butterfly Effect Written by: Isaac Arthur Editors: Darius Said Jerry Guern Victoria Kelly Graphics: Jakub Grygier https://www.artstation.com/jakub_grygier Produced & Narrated by: Isaac Arthur Music: Markus Junnikkala, "The Fate of Our People" & "A Memory of Earth" https://www.markusjunnikkala.com/ Chris Zabriskie, "Cylinder 9" & "The Oceans Continue to Rise" http://chriszabriskie.com

Start listening with a 30-day Audible trial and your first audiobook plus two Audible Originals are free. Visit http://www.audible.com/isaac or text "isaac" to 500-500. When people get lost, stranded, or stuck in dangerous situations, we go and rescue them. Today we'll look at what new dangers may face us in the future and what new tools technology might offer us to improve survival chances. Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Listen or Download the audio of this episode from Soundcloud: Episode's Audio-only version: https://soundcloud.com/isaac-arthur-148927746/high-tech-search-and-rescue Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/high-tech-search-and-rescue-narration-only Credits: High Tech Search & Rescue Episode 208, Season 5 E42 Written by: Isaac Arthur Editors: Darius Said Jerry Guern Keith Blockus Victoria Kelly Cover Art: Jakub Grygier https://www.artstation.com/jakub_grygier Graphics by: Bryan Versteeg http://spacehabs.com Darth Biomech https://www.artstation.com/darth_biomech Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana Katie Byrne Mihail Yordanov LegionTech Studios https://hades9.com Sam McNamara Sergio Botero https://www.artstation.com/sboterod?fref=gc Space Resources CGI Produced & Narrated by: Isaac Arthur Music: Courtesy of Epidemic Sound http://epidemicsound.com/creator

Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Venus is a desolate scorching world on which no life can exist. Yet if it can be cooled down, there is no other planet we know of more suitable for terraforming and colonization. We will examine methods of cooling Venus down and preparing it to be settled in the future. Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Listen or Download the audio of this episode from Soundcloud: Episode's Audio-only version: https://soundcloud.com/isaac-arthur-148927746/winter-on-venus Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/winter-on-venus-narration-only Credits: Winter on Venus Episode 207, Season 5 E41 Written by: Isaac Arthur Editors: Darius Said Jerry Guern S. Kopperud Cover Art Jakub Grygier https://www.artstation.com/jakub_grygier Graphics by Jarred Eagley Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana Kris Holland (Mafic Studios) www.maficstudios.com Kristijan Tavcar https://www.miragedereve.com Sam McNamara of Rapid Thrash Sergio Botero https://www.artstation.com/sboterod?fref=gc Tristan3D Produced & Narrated by Isaac Arthur Music Manager Luca DeRosa - [email protected] Music: Markus Junnikkala, "Hail the Victorious Dead" https://www.markusjunnikkala.com/ Aerium, "The Islands moved while I was asleep" https://www.youtube.com/channel/UCRnUJY3l5vIJFGsY3XvW4dQ Dan MacLeod, "Lucky" https://soundcloud.com/neptuneuk Markus Junnikkala, "The Men Would love a good fight" https://www.markusjunnikkala.com/ Lombus, "Doppler Shores" https://lombus.bandcamp.com Paradox Interactive, "In Search of Life" https://www.paradoxplaza.com Ross Bugden, "Revelation" https://www.youtube.com/channel/UCQKGLOK2FqmVgVwYferltKQ